| Omega Watch Index | Internet Wristwatch Index | How to regulate mechanical watches |
| Case | Bracelet | Dial | Size | Model number |
| steel | steel | black | gents | 3581.50.00 |
| steel | steel | white | gents | 3581.30.00 |
| steel | leather | white | gents | 3881.30.37 |
| steel | leather | black | gents | 3881.50.37 |
| Link to Broad Arrow GMT section of Omega's Website |